27kv surge arrester

详情

*7KV lightning arrester/surge arrester:

The zinc oxide arrester is the most advanced over-voltage protector in the world, due to make the resistor disc of core component mainly adopt zine oxide arrester, compared with the conventional siliconcarbide arrester,  this presciption of the product improves greatly the volt-Ampere charateristics of the resistor disc and increased through-current capability at over-voltage so as to bring a radical changes for the characteristics of the arresters.

Specifications:
1) MOA rated voltage:*7KV
2) MCOV:*2KV
3) 1/*0μs steep current impulse:*4KV
4) 8/*0μs lightning current impulse:*4KV
5)*0/*0μs switching current impulse:*3.5KV
6) 2ms rectangular current impulse withstand:**0A
7) 4/*0μs high current impulse withstand:**0KA

Normal service conditions:

1.The ambient air temperature is no higher than **0 degree. no lower than **0 degree.

2.The altitude above sea level does not exceed ***0m

3.Power frequency *8Hz~*2Hz

4.Maximum wind speed does not exceed *5m/s

5.The earthquake intensity does not exceed 7 degrees

6.The voltage that long-time exerted shouldn't exceed its Max MCOV